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// initialize canvas and context
const canvas = document.getElementById('canvas');
const ctx = canvas.getContext('2d');

// create car object with starting position and speed
const car = {
  x: 50,
  y: 50,
  speed: 5
};

// create function to draw car on canvas
function drawCar(x, y) {
  ctx.fillStyle = 'red';
  ctx.fillRect(x, y, 50, 25);
}

// create function to update car position and draw on canvas
function update() {
  // clear canvas
  ctx.clearRect(0, 0, canvas.width, canvas.height);

  // update car position based on speed
  car.x += car.speed;

  // draw car on canvas
  drawCar(car.x, car.y);

  // call update function again
  requestAnimationFrame(update);
}

// start game
update();